PRELIMINARY DESIGN ACCORDING TO THE CHINESE CODE Beams The spam of the beam determines the height of the girder A,-后0司L-60m b=0引a-30m All the beams will be 30cm x 60cm Columns As far as the Chinese GB 50011-2010 is concerned,the evaluation can be done in the same way, with different coefficients.The C35 concrete has af=16.7 MPa,according to the Chinese code, whereas Yc=1.2 and Yo=1.4;given that q=YG19x Yoqx=10.1 kN/m2 After that,I evaluate the load for the three different column I want to predesign(central column, border column,corner colum);since the influence area is different,I have: V6x6=Vcentral=10.1*6*6=372.6kW V6x3=Vborder=10.1*6*3=186.3kW V33=Veorner=10.1*3*3=93.15kW The evaluation if the minimum width of the column cross section is again N Where the design strength of the concrete has been reduced of a coefficient u=0.75,N is the axial force applied to the column,and gin is the minimum width of the column. Note that in the chinese code as well the value of n need to be incremented by a factor 8.which considers the position of the column in the structure itself(whether the column is central,on the sides or on the corners): Central column:B=1.0; Side column:B 1.1;B =1.2 There will be used two other coefficients to take into account the seismic loads requested (c=1.05): PRELIMINARY DESIGN ACCORDING TO THE CHINESE CODE Beams The spam of the beam determines the height of the girder: All the beams will be Columns As far as the Chinese GB 50011-2010 is concerned, the evaluation can be done in the same way, with different coefficients. The C35 concrete has a , according to the Chinese code, whereas and ; given that: After that, I evaluate the load for the three different column I want to predesign (central column, border column, corner column); since the influence area is different, I have: The evaluation if the minimum width of the column cross section is again: Where the design strength of the concrete has been reduced of a coefficient , N is the axial force applied to the column, and is the minimum width of the column. Note that in the Chinese Code as well the value of N need to be incremented by a factor , which considers the position of the column in the structure itself (whether the column is central, on the sides or on the corners): Central column: ; Side column: ; There will be used two other coefficients to take into account the seismic loads requested ( :